2.
Chanel Glossimer

This long-lasting, fragrance-free formula delivers just the right amount of color and shine you want from a gloss. Katy Perry's makeup artist Jake Bailey says: "I work with a lot of singers who don't like gloss because it's too sticky. All they say about this one is, 'Can I keep it?' "

4.
Nars Schiap

If just looking at the bottle
makes you happy, here's
something else to smile
about: The vibrant hue is so
richly pigmented that all you
need is one coat for "the
perfect streak-free manicure
or pedicure," says N.Y.C. nail
pro Gina Viviano.

6.
Dior 5-Colour Palette

"If I could have only one shadow palette, this would be it," says Nicole Richie's makeup artist Tasha Reiko Brown-Jovel. The highly refined, versatile shades go on like velvet and stay put all day. Apply with a wet brush for a bolder look.

7.
Lancome Definicils

Unlike other long-wear formulas, "it doesn't make lashes stiff," says makeup artist Jeanine Lobell, who also praises its superior thickening ability. The best part: It comes off easily with makeup remover, so no more lost lashes.

9.
Stila Convertible Color

These watercolor-inspired shades "aren't super-pigmented, so they give that delicate lit-from-within look," says Brett Freeup, an L.A. makeup artist. According to Jeanine Lobell, "It's beautiful on lips too." She has used it on Natalie Portman and Naomi Watts.

10.
I.D. Bare Minerals

The first of its kind and, pros agree, still the best for quick, on-the-go makeup with a clean, sheer finish. "It doesn't get too powdery," says N.Y.C. makeup artist Carolina Gonzalez, who applies it with a soft, natural bristle brush.

12.
Clinique City Block Sheer SPF 25

You don't have to be an urban warrior to appreciate this sunscreen, which combines blockers with antioxidants that fight free radicals (those pesky molecules that accelerate aging). It also "has a nice matte finish," says New Orleans dermatologist Mary Lupo.

16.
Neutrogena Ultra Sheer Dry-Touch Sunblock SPF 85

Doctors rave about this sunscreen because it disappears into skin without a trace-no small feat for such a high SPF, says dermatologist David Bank of N.Y.C. It doesn't clog pores either, regardless of how much you sweat.

19.
John Frieda Frizz-Ease

"This one will battle the worst humidity and frizz and still hold a curl," says Carla Gentry Osorio, who praises its low price. River Lloyd says, "It's failsafe. You can use it without reading the directions and still look great."

20.
David Babaii for Wildaid

Created by Babaii, an L.A. stylist, in collaboration with Kate Hudson, his longtime friend and client, this collection is free of harsh detergents, artificial fragrances and parabens. Instead, the team turned to natural ingredients from the South Pacific, including hydrating kiwifruit and mineral-rich volcanic ash, to produce rich lathers and luxurious textures.

21.
Bumble and Bumble

"This has the control of a gel with the lightweight texture of a lotion," says N.Y.C. stylist Erin Anderson, who has used it on Mischa Barton. "I can do everything with this," says stylist Sean James of Santa Monica. "It gives volume and smoothness. It's all-purpose."